– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Tue 21 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Tue 21 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Tue 21 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Very mild (max 13°C on Tue afternoon, min 5°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 7°C on Fri night). Wind will be generally light. | ||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  |  |  | | |  | | | |  | |
rain shwrs | light rain | light rain | light rain | light rain | light rain | rain shwrs | some clouds | clear | some clouds | some clouds | clear | cloudy | some clouds | some clouds | light rain | rain shwrs | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
0.3 | 0.4 | 1.3 | 0.8 | 1 | 0.2 | 0.3 | — | — | — | — | — | — | — | — | 0.3 | 0.3 | |
max °C | 13 | 9 | 8 | 8 | 8 | 7 | 8 | 8 | 12 | 15 | 11 | 12 | 14 | 11 | 11 | 13 | 10 |
min °C | 11 | 8 | 8 | 8 | 6 | 6 | 8 | 5 | 8 | 15 | 7 | 9 | 13 | 8 | 10 | 11 | 7 |
10 | 8 | 8 | 8 | 5 | 6 | 8 | 4 | 8 | 15 | 6 | 8 | 13 | 8 | 10 | 11 | 7 | |
2600 | 2200 | 1900 | 1850 | 1700 | 1550 | 1650 | 1600 | 2000 | 2250 | 2000 | 1850 | 2100 | 1900 | 1850 | 2050 | 1850 | |
Cloud base (m) | 800 | 600 | 550 | 550 | 600 | 600 | 650 | 1550 | 2700 | 2500 | 2800 | 3100 | 3300 | 3150 | 2150 | ||
 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — |
 | — | 8:07 | — | — | 8:08 | — | — | 8:09 | — | — | 8:12 | — | — | 8:13 | — | — | 8:15 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 13°C on Tue afternoon, min 5°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Fri afternoon, min 7°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.